Specifications

5
Press the button at the back of the sensors for 3 times until
the indicator light is red and blinking. When the sensor is
connected to the controller, the indicator light stops blinking
and the air quality icon(green leaf) at the controller will be
lighted all the time.
08 Charging
When the sensor is connected to the USB cable, if the
battery power is less than 100%, the sensor will be charged
automatically.
Then indicator light will blink every 10 seconds, and will
stop blinking after charging.